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A car manufacturer wants to test if the variance of miles-per-gallon (mpg) for a specific 2018 car model is lower than the va

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Answer #1

type i error is reject Ho when it is true.

Type ii error is accept Ho when it is false.

Here we want to test.

Ho:- 2018 variance is not lower than 2017

Vs

Ha:- 2018 variance is lower than 2017.

Type I error :- reject Ho when it is true.. i.e concluding 2018 variance is lower when it is not.

Type II error :- accept Ho when it is false. i.e concluding 2018 variance is not lower when it is.

In given statement is is not true.

Answer:- False

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A car manufacturer wants to test if the variance of miles-per-gallon (mpg) for a specific 2018 car model is lower than the variance for the 2017 model. The 2017 model's variance is known to be 0....
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